exporting to csv with powershell -edited -

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i'm reading in csv file (list of students, school, birthdays, etc) creating login names , exporting data csv imported system. working great except can 1 line of data in csv file (the last user name). assume overwriting same line each time. doing in powershell. help. here's code:

add-pssnapin quest.activeroles.admanagement  #import list of students hourly ic extract $users = import-csv c:\users\edge.brandon\desktop\enrollment\mbcextract.csv |    {$_.'grade' -ne 'pk' -and $_.'name' -ne 'ombudsman' -and $_.'name' -ne 'ombudsman ms' -and $_.'name' -ne 'z transition services' -and $_.'name' -ne 'z home services'}  if ($users) {   foreach ($u in $users) {      # sets middle name , initial null variable not cary on next student if have no middle name     $middle= $null     $mi= $null      $first= ($u.'firstname')     $last= ($u.'lastname')     $middle= ($u.'middlename')     $birth= ($u.'birthdate')     $grade= ($u.'grade')     $id= ($u.'studentnumber')     $schoolid= ($u.'sch.number')       #removes spaces, apostrophes, hyphens, periods, commas name     $first=$first.replace(" ", "")     $middle=$middle.replace(" ", "")     $last=$last.replace(" ", "")     $first=$first.replace("'", "")     $middle=$middle.replace("'", "")     $last=$last.replace("'", "")     $first=$first.replace("-", "")     $middle=$middle.replace("-", "")     $last=$last.replace("-", "")     $first=$first.replace(".", "")     $middle=$middle.replace(".", "")     $last=$last.replace(".", "")     $first=$first.replace(",", "")     $middle=$middle.replace(",", "")     $last=$last.replace(",", "")      # sets 1st , middle initial. sets mmdd of birth     $fi= $first.substring(0,1)     $mi= $middle.substring(0,1)     $mmdd =$birth.substring(0,4)      #sets username , makes sure truncates after 20 characters     $un= ($last + $fi + $mi +$mmdd)     $un= $un.substring(0,20)   } }  **$users |    select $id,$un,$first,$last,$schoolid,$grade,$upn,"1"," ","0" | export-csv mbc.csv**  remove-pssnapin quest.activeroles.admanagement

i found mistake changed $users $u ($u | select $id,$un,$first,$last,$schoolid,$grade,$upn,"1"," ","0" | export-csv mbc.csv -notypeinformation)

and added break point step thru code , if open csv file code running first line of csv file populates correctly each pass. continues write on first line...i tried append statement didn't help...how u make go next line in csv file (ie write line of data on row 1, go row 2 write line of data)

i can't provide full answer (i don't have csv data test offhand , don't know relevant bits of powershell enough memory comment specifically) @ least part of problem using values of variables in select statement , can't imagine meant that.

i imagine meant grab properties names instead (select id,un,first,last,... instead of select $id,$un,$first,$last,...).


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